错误提示：
CommandInvokationFailure: Unable to convert classes into dex format.
C:\Program Files\Java\jdk1.8.0_311\bin\java.exe -Xmx4096M -Dcom.android.sdkmanager.toolsdir="G:\Programme Files\Android\SDK\tools" -Dfile.encoding=UTF8 -jar "D:\Program Files\Unity2018411\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\sdktools.jar" -
stderr[
Uncaught translation error: java.lang.IllegalArgumentException: already added: Lcom/pico/loginpaysdk/UnityInterface;
Uncaught translation error: java.lang.IllegalArgumentException: already added: Lcom/pico/loginpaysdk/UnityInterface$a;
Uncaught translation error: java.lang.IllegalArgumentException: already added: Lcom/pico/loginpaysdk/UnityInterface$b;
Uncaught translation error: java.lang.IllegalArgumentException: already added: Lcom/pico/loginpaysdk/a/a;
Uncaught translation error: java.lang.IllegalArgumentException: already added: Lcom/pico/loginpaysdk/a/a$a;
Uncaught translation error: java.lang.Illeg